I have an 08 sport 4X4 with a TRD s/c with a urdcai and DT long tube headers, URD ypipe, banks 3" cat back and a unichip. I had my truck run on the dyno recently and I'm putting down at the rear tires 300hp and 344ftlbs of torque. I want to know how much power I can throw at the engine, the stock auto trans, and the stock LSD will handle before they go kaboom. I know theres room for improvement but gotta know the limits first.

The trans was designed for the 4.7 V8 so it is pretty stout. The 4wd system is pretty stout too. Super Werty runs 12s all day launching in 4wd. The engine will also handle quite a bit. The URD guys are pushing out really good power numbers.